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Space Fission Propulsion System Development StatusThe world's first man-made self-sustaining fission reaction was achieved in 1942. Since then fission has been used to propel submarines, generate tremendous amounts of electricity, produce medical isotopes, and provide numerous other benefits to society. Fission systems operate independently of solar proximity or orientation, and are thus well suited for deep spare or planetary surface missions. In addition, the fuel for fission systems (enriched uranium) is virtually non-radioactive. The primary safety issue with fission systems is avoiding inadvertent system start - addressing this issue through proper system design is straightforward. Despite the relative simplicity and tremendous potential of space fission systems, the development and utilization of these systems has proven elusive. The first use of fission technology in space occurred 3 April 1965 with the US launch of the SNAP-10A reactor. There have been no additional US uses of space fission system. While space fission system were used extensively by the former Soviet Union, their application was limited to earth-orbital missions. Early space fission systems must be safely and affordably utilized if Ae are to reap the benefits of advanced space fission systems.
Document ID
20010020218
Acquisition Source
Marshall Space Flight Center
Document Type
Preprint (Draft being sent to journal)
Authors
Houts, Mike
(NASA Marshall Space Flight Center Huntsville, AL United States)
VanDyke, Melissa
(NASA Marshall Space Flight Center Huntsville, AL United States)
Godfroy, Tom
(NASA Marshall Space Flight Center Huntsville, AL United States)
Pedersen, Kevin
(NASA Marshall Space Flight Center Huntsville, AL United States)
Martin, James
(NASA Marshall Space Flight Center Huntsville, AL United States)
Dickens, Ricky
(NASA Marshall Space Flight Center Huntsville, AL United States)
Williams, Eric
(NASA Marshall Space Flight Center Huntsville, AL United States)
Harper, Roger
(NASA Marshall Space Flight Center Huntsville, AL United States)
Salvail, Pat
(NASA Marshall Space Flight Center Huntsville, AL United States)
Hrbud, Ivana
(NASA Marshall Space Flight Center Huntsville, AL United States)
Rodgers, Stephen L.
Date Acquired
August 20, 2013
Publication Date
January 1, 2001
Subject Category
Spacecraft Propulsion And Power
Meeting Information
Meeting: Outer Planet Exploration
Location: Houston, TX
Country: United States
Start Date: February 21, 2001
End Date: February 23, 2001
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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